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Does or has anyone made compost tea for their lawns? I have a hose applicator thingy to spray with. I just wondered anyone had nailed down the amount of compost in a volume of water, the amount of tea in the sprayer thingy and spray # to use. Example, a quart of homemade compost per 4 gallons of water. Stir frequently for 8 hours. Strain and fill container and set on 2.5 oz.

It has been years since I used one of those sprayers and from what I remember, the concentrated liquid in the sprayer went a very long way as I was spraying. I don't think you could get too strong of compost tea that way. I would think the hose water would dilute your concentrated compost tea to the point it would be very weak by the time it got on the lawn. There wouldn't be anything wrong with it being very weak though. You could always repeat the application again. Someone here may have had experience with compost tea in a sprayer like yours and may be able to give their experiences.

We have dollar spot fungi on the front lawn. After reading the Microbes book, I am trying compost tea to up the bacterial count. If I can get husband to cut and drop, and I spray with tea, maybe we can get dollar spot under control.

See "Compost Tea Recipe" by Camprn, in that is a link to making a "tea maker" and in that article:

Using your tea As a foliar spray, five gallons of tea will cover a full acre of lawn or garden. As a soil drench five gallons will cover about 10,000 square feet of lawn or garden. It doesn’t really matter how much water you use to dilute and spread the tea. The water is only a carrier. Just remember to stay in the area to be covered until you run out of tea. I have never heard of any time when too much tea was used so don’t worry about over doing it. You can spray tea every day, every week, or monthly.

So, on the one hand it's like Boffer said, it's anywhere from 5 gal per acre to 5 gal. per 10,000 s.f., which is about 20 gal. per acre. If I understand your original question correctly you're trying to figure out a setting for a delivery system that hooks to a hose or sprinkler. IMO, I'd treat that as a "drench" and go with the 5 gal. per 10,000 s.f. rate. Figure out how many total gallons you need, then you need to know how many gallons (probably quarts) you can deliver in one dose/drench. Then just evenly divide that over your yard. e.g. I have a 10,000 s.f. lawn, I have a sprinkler that can cover 2,000 s.f. and has a 1 quart delivery system. I need 20 total quarts to cover the yard, I have to move the sprinkle 5 times to cover the yard, so I set the sprinkler up, run 4 quarts through it and then move it to next location. So, the exact rate is not so important as long as you get it spread out and delivered to the lawn. You want a setting that is not so little that you have to run the system for hours to get the tea through and end up with a soggy yard and not so much that the tea goes through in a minute and the ground is barely wet (mainly concern about even distribution over area).

At this point it's all an experiment. The whole lot is 6,000 sq ft with 1,900 in house. I'm guessing the front lawn is about 600-800 sq ft. I set the quart container at 4 oz, filled and watered twice. At this point there isn't much to loose. If DH will let the grass clippings drop and I spray routinely with tea, I am hoping to drought proof the lawn and get rid of the dollar spot fungus.

these results made help feel more comfortable with your experiment. I hope to do your experiment at my place also.

I hope this is helpful, because the other moderators and you are worth receiving all blessings from the participates of the forum . Who are they- individuals, couples, families that are positive thinkers and demolishers of the terms, "I, we can't do that", " It's always been done that way", "No-one never did it that way before", willing to fail to see success thru different experimentation and share their results, full of exuberation, beginners , naive thinkers, and professionals with burning high and moderate hopes/dreams within their heart, inventors willingly to think, expand out of the box, pioneers to the next frontier into infinity and beyond( yea, I said it), children and adult children that been release into SFGing and whatever else anyone wants to add...